Which of the following is a solution to √x+10 +3=8?

x = 15

x = 5

x = –5

x = –15

Question

Which of the following is a solution to √x+10 +3=8?

 x = 15

 x = 5

 x = –5

 x = –15

johnweldon1993 · Answer

$$\large \sqrt{x} + 10 + 3 = 8$$

like that?

anonymous · Answer

no, x+10 is under the radical sign, +3=8 is not

johnweldon1993 · Answer

Ahh that makes sense...

$$\large \sqrt{x + 10} + 3 = 8$$

isolate the radical...by subtracting 3 from both sides...

$$\large \sqrt{x + 10} = 5$$

Now square both sides of the equation to get rid of the radical...

$$\large x + 10 = 25 $$

And finally subtract 10 from both sides of the equation...

$$\large x = 15 $$

johnweldon1993 · Answer

Hope that makes sense @skltngrl12 :)

anonymous · Answer

Thank you :)

johnweldon1993 · Answer

No problem :)